from the high of 800, corn declined in wave I of (c), then bounced in wave II, we expect a sharp decline after wave II finished, critical resistance at 800.
Comes closer in the weekly range and from the top of wave c of (b), which the 5th of c wave is a truncated wave, the corn started the decline in wave (c).
From the top of wave ((III)), we counted the decline as wave (a) of flat correction in wave ((IV)), and the advance as wave (b), currently corn in wave (c), we expect a 5-wave decline in wave (C) back to the old low of wave (a).